Unit 2 Interim Assessment - mcas.k12.in.us · Unit 2 Interim Assessment continued Answer the...
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Assessment ©Curriculum Associates, LLC Copying is not permitted. 154 Interim Assessment Unit 2 Unit 2 Interim Assessment Solve the problems. 1 Paul is making banana bread. The number of cups of bananas he uses is proportional to the number of loaves of bread. Paul uses 11 1 } 4 cups of bananas to make 5 loaves of bread. Which equation represents the relationship between c, the number of cups of bananas, and b , the number of loaves of bread? A c 5 4 } 9 b B c 5 2b C c 5 2 1 } 4 b D c 5 5b 2 Henry sells apples. The graph shows the relationship between the price of apples and their total weight. What does the point (0, 0) on the graph mean? A Henry didn’t sell any apples last week. B Henry does not make any money for selling apples. C Henry didn’t make any money last week selling apples. D Henry does not make money if he sells no apples. 3 Kelly hiked in the woods. It took her 1 }} 14 hour to walk 1 } 4 mile. After she snacked, she walked another 1 } 6 mile in 1 }} 16 hour. Choose True or False for each statement. a. Before her snack, Kelly walked at a rate of 4 }} 14 miles per hour. True False b. For the second part of her hike, Kelly walked at a rate of 2 2 } 3 miles per hour. True False c. It took Kelly 2 hours longer to walk 1 } 6 mile than it did for her to walk 1 } 4 mile. True False d. Kelly walked over 30% faster before her snack than she did after her snack. True False Weight (pounds) x y 2 0 1 3 5 7 4 6 8 2 0 1 3 5 7 4 6 8 Price (dollars)
Transcript of Unit 2 Interim Assessment - mcas.k12.in.us · Unit 2 Interim Assessment continued Answer the...
Assessment
©Curriculum Associates, LLC Copying is not permitted.154
Interim AssessmentUnit 2
Unit 2 Interim Assessment
Solve the problems.
1 Paul is making banana bread. The number of cups of bananas he uses is proportional to
the number of loaves of bread. Paul uses 11 1}4 cups of bananas to make 5 loaves of bread.
Which equation represents the relationship between c, the number of cups of bananas,
and b, the number of loaves of bread?
A c 54}9 b
B c 5 2b
C c 5 2 1}4 b
D c 5 5b
2 Henry sells apples. The graph shows the relationship between the price of apples and their total weight.
What does the point (0, 0) on the graph mean?
A Henry didn’t sell any apples last week.
B Henry does not make any money for selling apples.
C Henry didn’t make any money last week selling apples.
D Henry does not make money if he sells no apples.
3 Kelly hiked in the woods. It took her 1}}14 hour to walk 1}4 mile. After she snacked, she
walked another 1}6 mile in 1}}16 hour. Choose True or False for each statement.
a. Before her snack, Kelly walked at a rate of 4
}}14 miles per hour. True False
b. For the second part of her hike, Kelly walked
at a rate of 2 2}3 miles per hour. True False
c. It took Kelly 2 hours longer to walk 1}6 mile than
it did for her to walk 1}4 mile. True False
d. Kelly walked over 30% faster before her snack than she did after her snack. True False
Weight (pounds)
x
y
2
0
1
3
5
7
4
6
8
20 1 3 5 74 6 8
Pric
e (d
olla
rs)
©Curriculum Associates, LLC Copying is not permitted. 155Unit 2 Interim Assessment
4 Traci wants to buy rings that cost $50 each. A jeweler is o� ering a deal in which you buy 1 ring and get the 2nd for 25% o� and the 3rd for 50% o� . The sales tax is 8%. Traci will buy 3 rings. How much money will Traci save using the deal instead of paying full price for all 3 rings?
Traci will save $
5 The graph shows the relationship between the number of hours Angie works and the amount of money she earns.
Does the graph represent a linear function? Explain. If this is a linear function, what is the slope?
6 Coach Shaw is buying baseball equipment for his team. He gets a reduced rate if he buys 8 baseballs for every 3 batting helmets. The reduced rate is $2.25 per baseball and $22.50 per helmet. The sales tax on each item is 6%. Coach Shaw has $400 in his budget to buy baseballs and helmets. What is the greatest number of baseballs and helmets he can buy at the reduced rate if the ratio of baseballs to helmets is 8:3?
Show your work.
Answer
Hours Worked
x
y
20
0
10
30
50
70
40
60
80
90
20 1 3 5 74 6 8 9 10
Dol
lars
Ear
ned
156 ©Curriculum Associates, LLC Copying is not permitted.
Performance Task
Unit 2 Interim Assessment
Unit 2 Interim Assessment continued
Answer the questions and show all your work on separate paper.
In three weeks, Raj’s favorite store is having a sale on jeans. All jeans will be 50% off the regular price. Raj also has a coupon that will give him 30% off his total purchase. “Yay, 80% off!” he exclaims. He wants to buy one pair of jeans that is regularly $50, one pair that is regularly $30, and one pair that is regularly $20.
Raj calculated how much money, to the nearest dollar, he will need for his jeans and plans to save the same amount each of the next three weeks until he has enough for the jeans. His calculations are shown below.
Regular price total: $50 1 $30 1 $20 5 $100
I will pay 100% 2 80% 5 20% of the price.
Total price after the discount 5 $100 3 0.205 $20
Raj thinks he needs to save about $7 each week to have enough money in 3 weeks’ time.
Raj made a mistake when calculating how much money he will need to buy the jeans. Describe his mistake. Then, figure out how much he will need for the jeans and decide on a new savings plan. About how much will Raj need to save each week to be able to afford his jeans?
ReflectReflect on Mathematical Practices After you complete the task, choose one of the following questions to answer.
• Argue and Critique How did you discover and explain Raj’s mistake?
• Reason Mathematically How do you know that your answer makes sense?
ChecklistDid You . . .
Identify the mistake Raj made?
Correctly solve the problem to find how much Raj needs to save?
Figure out Raj’s new savings plan?
